dsPIC30F Family Reference Manual
DS70062C-page 15-26 © 2004 Microchip Technology Inc.
Figure 15-13: Dead Time Unit Block Diagram for One Output Pin Pair
Figure 15-14: Dead Time Insertion Diagram
Low-Side PWM signal
to output pin
High-side PWM signal
to output pin
Zero Compare
Clock Control
6-Bit Down Counter
PWM
TCY
Dead Time A Dead Time B
Dead Time
Select Logic
Prescaler
Generator
Input
Note: Logic in dashed lines not present on 6-output PWM module.
PWM Generator
PWMxH
PWMxL
Time selected by DTSxA bit (A or B) Time selected by DTSxI bit (A or B)
PWMxH
PWMxL
Dead time = 0
Non-zero
dead time
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